<template>
  <div>
    <CityHeader></CityHeader>
    <CitySearch :cities="cities"></CitySearch>
    <CityList
      :cities="cities"
      :hotCities="hotCities"
      :letter="letter"
    ></CityList>
    <CityAlphabet
      :cities="cities"
      @change="handleLetterClick"
    ></CityAlphabet>
  </div>
</template>

<script>
  import axios from 'axios'
  import CityHeader from './components/Header'
  import CitySearch from './components/Search'
  import CityList from './components/List'
  import CityAlphabet from './components/Alphabet'

  export default {
    name: "City",
    components: {
      CityHeader,
      CitySearch,
      CityList,
      CityAlphabet
    },
    data () {
    return {
      cities: {},
      hotCities: [],
      letter:""
    }
  },
  methods: {
    getCityInfo () {
      //  发送请求
      axios.get('/static/mock/city.json')
        .then(this.handleGetCityInfoSucc)
    },
    //  处理方法
    handleGetCityInfoSucc (res) {
      res = res.data
      if (res.ret && res.data) {
        const data = res.data
        this.cities = data.cities
        this.hotCities = data.hotCities
      }
    },
    handleLetterClick(letter){
      this.letter = letter
    }
  },
    mounted() {
      //  页面挂载后执行此方法
      this.getCityInfo()
    }
  }
</script>

<style lang="stylus" scoped>
</style>
